| 1 |
1275 |
phoenix |
/* $Id: setup.c,v 1.1.1.1 2004-04-15 01:34:21 phoenix Exp $
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| 2 |
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* linux/arch/sparc64/kernel/setup.c
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*
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* Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu)
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* Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
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*/
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#include <linux/errno.h>
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| 9 |
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#include <linux/sched.h>
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| 10 |
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/stddef.h>
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#include <linux/unistd.h>
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#include <linux/ptrace.h>
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| 15 |
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#include <linux/slab.h>
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#include <asm/smp.h>
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#include <linux/user.h>
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#include <linux/a.out.h>
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| 19 |
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#include <linux/tty.h>
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#include <linux/delay.h>
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| 21 |
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#include <linux/config.h>
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| 22 |
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#include <linux/fs.h>
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#include <linux/seq_file.h>
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#include <linux/kdev_t.h>
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#include <linux/major.h>
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#include <linux/string.h>
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#include <linux/blk.h>
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#include <linux/init.h>
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| 29 |
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#include <linux/inet.h>
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#include <linux/console.h>
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| 32 |
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#include <asm/segment.h>
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| 33 |
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#include <asm/system.h>
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| 34 |
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#include <asm/io.h>
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| 35 |
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#include <asm/processor.h>
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| 36 |
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#include <asm/oplib.h>
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| 37 |
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#include <asm/page.h>
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| 38 |
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#include <asm/pgtable.h>
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| 39 |
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#include <asm/idprom.h>
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#include <asm/head.h>
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| 41 |
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#include <asm/starfire.h>
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#include <asm/hardirq.h>
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| 43 |
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#include <asm/sections.h>
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#ifdef CONFIG_IP_PNP
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#include <net/ipconfig.h>
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| 47 |
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#endif
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| 48 |
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| 49 |
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struct screen_info screen_info = {
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0, 0, /* orig-x, orig-y */
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0, /* unused */
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0, /* orig-video-page */
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0, /* orig-video-mode */
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| 54 |
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128, /* orig-video-cols */
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| 55 |
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0, 0, 0, /* unused, ega_bx, unused */
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54, /* orig-video-lines */
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0, /* orig-video-isVGA */
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| 58 |
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16 /* orig-video-points */
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| 59 |
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};
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| 60 |
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| 61 |
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/* Typing sync at the prom prompt calls the function pointed to by
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* the sync callback which I set to the following function.
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| 63 |
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* This should sync all filesystems and return, for now it just
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* prints out pretty messages and returns.
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| 65 |
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*/
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| 66 |
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| 67 |
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#if CONFIG_SUN_CONSOLE
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| 68 |
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void (*prom_palette)(int);
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| 69 |
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#endif
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| 70 |
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void (*prom_keyboard)(void);
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asmlinkage void sys_sync(void); /* it's really int */
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| 73 |
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static void
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prom_console_write(struct console *con, const char *s, unsigned n)
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{
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| 76 |
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prom_printf("%s", s);
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| 77 |
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}
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| 79 |
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static struct console prom_console = {
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name: "prom",
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write: prom_console_write,
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flags: CON_CONSDEV | CON_ENABLED,
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index: -1,
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};
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| 86 |
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#define PROM_TRUE -1
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#define PROM_FALSE 0
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| 89 |
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/* Pretty sick eh? */
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int prom_callback(long *args)
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{
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| 92 |
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struct console *cons, *saved_console = NULL;
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| 93 |
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unsigned long flags;
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| 94 |
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char *cmd;
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| 95 |
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extern spinlock_t prom_entry_lock;
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| 96 |
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| 97 |
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if (!args)
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| 98 |
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return -1;
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| 99 |
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if (!(cmd = (char *)args[0]))
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| 100 |
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return -1;
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| 101 |
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| 102 |
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/*
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| 103 |
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* The callback can be invoked on the cpu that first dropped
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| 104 |
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* into prom_cmdline after taking the serial interrupt, or on
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| 105 |
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* a slave processor that was smp_captured() if the
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| 106 |
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* administrator has done a switch-cpu inside obp. In either
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| 107 |
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* case, the cpu is marked as in-interrupt. Drop IRQ locks.
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| 108 |
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*/
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| 109 |
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irq_exit(smp_processor_id(), 0);
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| 110 |
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save_and_cli(flags);
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| 111 |
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spin_unlock(&prom_entry_lock);
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| 112 |
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cons = console_drivers;
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| 113 |
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while (cons) {
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| 114 |
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unregister_console(cons);
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| 115 |
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cons->flags &= ~(CON_PRINTBUFFER);
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| 116 |
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cons->next = saved_console;
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| 117 |
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saved_console = cons;
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| 118 |
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cons = console_drivers;
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| 119 |
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}
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| 120 |
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register_console(&prom_console);
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| 121 |
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if (!strcmp(cmd, "sync")) {
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| 122 |
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prom_printf("PROM `%s' command...\n", cmd);
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| 123 |
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show_free_areas();
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if(current->pid != 0) {
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sti();
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| 126 |
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sys_sync();
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| 127 |
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cli();
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| 128 |
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}
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| 129 |
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args[2] = 0;
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args[args[1] + 3] = -1;
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prom_printf("Returning to PROM\n");
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| 132 |
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} else if (!strcmp(cmd, "va>tte-data")) {
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| 133 |
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unsigned long ctx, va;
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| 134 |
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unsigned long tte = 0;
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| 135 |
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long res = PROM_FALSE;
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| 136 |
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| 137 |
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ctx = args[3];
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| 138 |
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va = args[4];
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| 139 |
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if (ctx) {
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| 140 |
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/*
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| 141 |
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* Find process owning ctx, lookup mapping.
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| 142 |
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*/
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| 143 |
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struct task_struct *p;
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| 144 |
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struct mm_struct *mm = NULL;
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| 145 |
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pgd_t *pgdp;
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| 146 |
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pmd_t *pmdp;
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| 147 |
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pte_t *ptep;
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| 148 |
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| 149 |
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for_each_task(p) {
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| 150 |
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mm = p->mm;
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| 151 |
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if (CTX_HWBITS(mm->context) == ctx)
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| 152 |
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break;
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| 153 |
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}
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| 154 |
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if (!mm ||
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CTX_HWBITS(mm->context) != ctx)
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| 156 |
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goto done;
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| 157 |
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| 158 |
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pgdp = pgd_offset(mm, va);
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| 159 |
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if (pgd_none(*pgdp))
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| 160 |
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goto done;
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| 161 |
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pmdp = pmd_offset(pgdp, va);
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| 162 |
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if (pmd_none(*pmdp))
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goto done;
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| 164 |
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ptep = pte_offset(pmdp, va);
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| 165 |
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if (!pte_present(*ptep))
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goto done;
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| 167 |
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tte = pte_val(*ptep);
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| 168 |
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res = PROM_TRUE;
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| 169 |
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goto done;
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| 170 |
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}
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| 171 |
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| 172 |
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if ((va >= KERNBASE) && (va < (KERNBASE + (4 * 1024 * 1024)))) {
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| 173 |
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/* Spitfire Errata #32 workaround */
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| 174 |
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__asm__ __volatile__("stxa %0, [%1] %2\n\t"
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| 175 |
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"flush %%g6"
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| 176 |
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: /* No outputs */
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| 177 |
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: "r" (0),
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| 178 |
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"r" (PRIMARY_CONTEXT), "i" (ASI_DMMU));
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| 179 |
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| 180 |
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/*
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| 181 |
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* Locked down tlb entry.
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| 182 |
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*/
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| 183 |
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| 184 |
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if (tlb_type == spitfire)
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| 185 |
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tte = spitfire_get_dtlb_data(SPITFIRE_HIGHEST_LOCKED_TLBENT);
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| 186 |
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else if (tlb_type == cheetah || tlb_type == cheetah_plus)
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| 187 |
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tte = cheetah_get_ldtlb_data(CHEETAH_HIGHEST_LOCKED_TLBENT);
|
| 188 |
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|
| 189 |
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res = PROM_TRUE;
|
| 190 |
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goto done;
|
| 191 |
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}
|
| 192 |
|
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|
| 193 |
|
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if (va < PGDIR_SIZE) {
|
| 194 |
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/*
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| 195 |
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* vmalloc or prom_inherited mapping.
|
| 196 |
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*/
|
| 197 |
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pgd_t *pgdp;
|
| 198 |
|
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pmd_t *pmdp;
|
| 199 |
|
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pte_t *ptep;
|
| 200 |
|
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int error;
|
| 201 |
|
|
|
| 202 |
|
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if ((va >= LOW_OBP_ADDRESS) && (va < HI_OBP_ADDRESS)) {
|
| 203 |
|
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tte = prom_virt_to_phys(va, &error);
|
| 204 |
|
|
if (!error)
|
| 205 |
|
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res = PROM_TRUE;
|
| 206 |
|
|
goto done;
|
| 207 |
|
|
}
|
| 208 |
|
|
pgdp = pgd_offset_k(va);
|
| 209 |
|
|
if (pgd_none(*pgdp))
|
| 210 |
|
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goto done;
|
| 211 |
|
|
pmdp = pmd_offset(pgdp, va);
|
| 212 |
|
|
if (pmd_none(*pmdp))
|
| 213 |
|
|
goto done;
|
| 214 |
|
|
ptep = pte_offset(pmdp, va);
|
| 215 |
|
|
if (!pte_present(*ptep))
|
| 216 |
|
|
goto done;
|
| 217 |
|
|
tte = pte_val(*ptep);
|
| 218 |
|
|
res = PROM_TRUE;
|
| 219 |
|
|
goto done;
|
| 220 |
|
|
}
|
| 221 |
|
|
|
| 222 |
|
|
if (va < PAGE_OFFSET) {
|
| 223 |
|
|
/*
|
| 224 |
|
|
* No mappings here.
|
| 225 |
|
|
*/
|
| 226 |
|
|
goto done;
|
| 227 |
|
|
}
|
| 228 |
|
|
|
| 229 |
|
|
if (va & (1UL << 40)) {
|
| 230 |
|
|
/*
|
| 231 |
|
|
* I/O page.
|
| 232 |
|
|
*/
|
| 233 |
|
|
|
| 234 |
|
|
tte = (__pa(va) & _PAGE_PADDR) |
|
| 235 |
|
|
_PAGE_VALID | _PAGE_SZ4MB |
|
| 236 |
|
|
_PAGE_E | _PAGE_P | _PAGE_W;
|
| 237 |
|
|
res = PROM_TRUE;
|
| 238 |
|
|
goto done;
|
| 239 |
|
|
}
|
| 240 |
|
|
|
| 241 |
|
|
/*
|
| 242 |
|
|
* Normal page.
|
| 243 |
|
|
*/
|
| 244 |
|
|
tte = (__pa(va) & _PAGE_PADDR) |
|
| 245 |
|
|
_PAGE_VALID | _PAGE_SZ4MB |
|
| 246 |
|
|
_PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_W;
|
| 247 |
|
|
res = PROM_TRUE;
|
| 248 |
|
|
|
| 249 |
|
|
done:
|
| 250 |
|
|
if (res == PROM_TRUE) {
|
| 251 |
|
|
args[2] = 3;
|
| 252 |
|
|
args[args[1] + 3] = 0;
|
| 253 |
|
|
args[args[1] + 4] = res;
|
| 254 |
|
|
args[args[1] + 5] = tte;
|
| 255 |
|
|
} else {
|
| 256 |
|
|
args[2] = 2;
|
| 257 |
|
|
args[args[1] + 3] = 0;
|
| 258 |
|
|
args[args[1] + 4] = res;
|
| 259 |
|
|
}
|
| 260 |
|
|
} else if (!strcmp(cmd, ".soft1")) {
|
| 261 |
|
|
unsigned long tte;
|
| 262 |
|
|
|
| 263 |
|
|
tte = args[3];
|
| 264 |
|
|
prom_printf("%lx:\"%s%s%s%s%s\" ",
|
| 265 |
|
|
(tte & _PAGE_SOFT) >> 7,
|
| 266 |
|
|
tte & _PAGE_MODIFIED ? "M" : "-",
|
| 267 |
|
|
tte & _PAGE_ACCESSED ? "A" : "-",
|
| 268 |
|
|
tte & _PAGE_READ ? "W" : "-",
|
| 269 |
|
|
tte & _PAGE_WRITE ? "R" : "-",
|
| 270 |
|
|
tte & _PAGE_PRESENT ? "P" : "-");
|
| 271 |
|
|
|
| 272 |
|
|
args[2] = 2;
|
| 273 |
|
|
args[args[1] + 3] = 0;
|
| 274 |
|
|
args[args[1] + 4] = PROM_TRUE;
|
| 275 |
|
|
} else if (!strcmp(cmd, ".soft2")) {
|
| 276 |
|
|
unsigned long tte;
|
| 277 |
|
|
|
| 278 |
|
|
tte = args[3];
|
| 279 |
|
|
prom_printf("%lx ", (tte & 0x07FC000000000000) >> 50);
|
| 280 |
|
|
|
| 281 |
|
|
args[2] = 2;
|
| 282 |
|
|
args[args[1] + 3] = 0;
|
| 283 |
|
|
args[args[1] + 4] = PROM_TRUE;
|
| 284 |
|
|
} else {
|
| 285 |
|
|
prom_printf("unknown PROM `%s' command...\n", cmd);
|
| 286 |
|
|
}
|
| 287 |
|
|
unregister_console(&prom_console);
|
| 288 |
|
|
while (saved_console) {
|
| 289 |
|
|
cons = saved_console;
|
| 290 |
|
|
saved_console = cons->next;
|
| 291 |
|
|
register_console(cons);
|
| 292 |
|
|
}
|
| 293 |
|
|
spin_lock(&prom_entry_lock);
|
| 294 |
|
|
restore_flags(flags);
|
| 295 |
|
|
/*
|
| 296 |
|
|
* Restore in-interrupt status for a resume from obp.
|
| 297 |
|
|
*/
|
| 298 |
|
|
irq_enter(smp_processor_id(), 0);
|
| 299 |
|
|
return 0;
|
| 300 |
|
|
}
|
| 301 |
|
|
|
| 302 |
|
|
extern void rs_kgdb_hook(int tty_num); /* sparc/serial.c */
|
| 303 |
|
|
|
| 304 |
|
|
unsigned int boot_flags = 0;
|
| 305 |
|
|
#define BOOTME_DEBUG 0x1
|
| 306 |
|
|
#define BOOTME_SINGLE 0x2
|
| 307 |
|
|
#define BOOTME_KGDB 0x4
|
| 308 |
|
|
|
| 309 |
|
|
#ifdef CONFIG_SUN_CONSOLE
|
| 310 |
|
|
static int console_fb __initdata = 0;
|
| 311 |
|
|
#endif
|
| 312 |
|
|
|
| 313 |
|
|
/* Exported for mm/init.c:paging_init. */
|
| 314 |
|
|
unsigned long cmdline_memory_size = 0;
|
| 315 |
|
|
|
| 316 |
|
|
static struct console prom_debug_console = {
|
| 317 |
|
|
name: "debug",
|
| 318 |
|
|
write: prom_console_write,
|
| 319 |
|
|
flags: CON_PRINTBUFFER,
|
| 320 |
|
|
index: -1,
|
| 321 |
|
|
};
|
| 322 |
|
|
|
| 323 |
|
|
/* XXX Implement this at some point... */
|
| 324 |
|
|
void kernel_enter_debugger(void)
|
| 325 |
|
|
{
|
| 326 |
|
|
}
|
| 327 |
|
|
|
| 328 |
|
|
int obp_system_intr(void)
|
| 329 |
|
|
{
|
| 330 |
|
|
if (boot_flags & BOOTME_DEBUG) {
|
| 331 |
|
|
printk("OBP: system interrupted\n");
|
| 332 |
|
|
prom_halt();
|
| 333 |
|
|
return 1;
|
| 334 |
|
|
}
|
| 335 |
|
|
return 0;
|
| 336 |
|
|
}
|
| 337 |
|
|
|
| 338 |
|
|
/*
|
| 339 |
|
|
* Process kernel command line switches that are specific to the
|
| 340 |
|
|
* SPARC or that require special low-level processing.
|
| 341 |
|
|
*/
|
| 342 |
|
|
static void __init process_switch(char c)
|
| 343 |
|
|
{
|
| 344 |
|
|
switch (c) {
|
| 345 |
|
|
case 'd':
|
| 346 |
|
|
boot_flags |= BOOTME_DEBUG;
|
| 347 |
|
|
break;
|
| 348 |
|
|
case 's':
|
| 349 |
|
|
boot_flags |= BOOTME_SINGLE;
|
| 350 |
|
|
break;
|
| 351 |
|
|
case 'h':
|
| 352 |
|
|
prom_printf("boot_flags_init: Halt!\n");
|
| 353 |
|
|
prom_halt();
|
| 354 |
|
|
break;
|
| 355 |
|
|
case 'p':
|
| 356 |
|
|
/* Use PROM debug console. */
|
| 357 |
|
|
register_console(&prom_debug_console);
|
| 358 |
|
|
break;
|
| 359 |
|
|
default:
|
| 360 |
|
|
printk("Unknown boot switch (-%c)\n", c);
|
| 361 |
|
|
break;
|
| 362 |
|
|
}
|
| 363 |
|
|
}
|
| 364 |
|
|
|
| 365 |
|
|
static void __init boot_flags_init(char *commands)
|
| 366 |
|
|
{
|
| 367 |
|
|
while (*commands) {
|
| 368 |
|
|
/* Move to the start of the next "argument". */
|
| 369 |
|
|
while (*commands && *commands == ' ')
|
| 370 |
|
|
commands++;
|
| 371 |
|
|
|
| 372 |
|
|
/* Process any command switches, otherwise skip it. */
|
| 373 |
|
|
if (*commands == '\0')
|
| 374 |
|
|
break;
|
| 375 |
|
|
else if (*commands == '-') {
|
| 376 |
|
|
commands++;
|
| 377 |
|
|
while (*commands && *commands != ' ')
|
| 378 |
|
|
process_switch(*commands++);
|
| 379 |
|
|
} else if (strlen(commands) >= 9
|
| 380 |
|
|
&& !strncmp(commands, "kgdb=tty", 8)) {
|
| 381 |
|
|
boot_flags |= BOOTME_KGDB;
|
| 382 |
|
|
switch (commands[8]) {
|
| 383 |
|
|
#ifdef CONFIG_SUN_SERIAL
|
| 384 |
|
|
case 'a':
|
| 385 |
|
|
rs_kgdb_hook(0);
|
| 386 |
|
|
prom_printf("KGDB: Using serial line /dev/ttya.\n");
|
| 387 |
|
|
break;
|
| 388 |
|
|
case 'b':
|
| 389 |
|
|
rs_kgdb_hook(1);
|
| 390 |
|
|
prom_printf("KGDB: Using serial line /dev/ttyb.\n");
|
| 391 |
|
|
break;
|
| 392 |
|
|
#endif
|
| 393 |
|
|
default:
|
| 394 |
|
|
printk("KGDB: Unknown tty line.\n");
|
| 395 |
|
|
boot_flags &= ~BOOTME_KGDB;
|
| 396 |
|
|
break;
|
| 397 |
|
|
}
|
| 398 |
|
|
commands += 9;
|
| 399 |
|
|
} else {
|
| 400 |
|
|
#if CONFIG_SUN_CONSOLE
|
| 401 |
|
|
if (!strncmp(commands, "console=", 8)) {
|
| 402 |
|
|
commands += 8;
|
| 403 |
|
|
if (!strncmp (commands, "ttya", 4)) {
|
| 404 |
|
|
console_fb = 2;
|
| 405 |
|
|
prom_printf ("Using /dev/ttya as console.\n");
|
| 406 |
|
|
} else if (!strncmp (commands, "ttyb", 4)) {
|
| 407 |
|
|
console_fb = 3;
|
| 408 |
|
|
prom_printf ("Using /dev/ttyb as console.\n");
|
| 409 |
|
|
#if defined(CONFIG_PROM_CONSOLE)
|
| 410 |
|
|
} else if (!strncmp (commands, "prom", 4)) {
|
| 411 |
|
|
char *p;
|
| 412 |
|
|
|
| 413 |
|
|
for (p = commands - 8; *p && *p != ' '; p++)
|
| 414 |
|
|
*p = ' ';
|
| 415 |
|
|
conswitchp = &prom_con;
|
| 416 |
|
|
console_fb = 1;
|
| 417 |
|
|
#endif
|
| 418 |
|
|
} else {
|
| 419 |
|
|
console_fb = 1;
|
| 420 |
|
|
}
|
| 421 |
|
|
} else
|
| 422 |
|
|
#endif
|
| 423 |
|
|
if (!strncmp(commands, "mem=", 4)) {
|
| 424 |
|
|
/*
|
| 425 |
|
|
* "mem=XXX[kKmM]" overrides the PROM-reported
|
| 426 |
|
|
* memory size.
|
| 427 |
|
|
*/
|
| 428 |
|
|
cmdline_memory_size = simple_strtoul(commands + 4,
|
| 429 |
|
|
&commands, 0);
|
| 430 |
|
|
if (*commands == 'K' || *commands == 'k') {
|
| 431 |
|
|
cmdline_memory_size <<= 10;
|
| 432 |
|
|
commands++;
|
| 433 |
|
|
} else if (*commands=='M' || *commands=='m') {
|
| 434 |
|
|
cmdline_memory_size <<= 20;
|
| 435 |
|
|
commands++;
|
| 436 |
|
|
}
|
| 437 |
|
|
}
|
| 438 |
|
|
while (*commands && *commands != ' ')
|
| 439 |
|
|
commands++;
|
| 440 |
|
|
}
|
| 441 |
|
|
}
|
| 442 |
|
|
}
|
| 443 |
|
|
|
| 444 |
|
|
extern int prom_probe_memory(void);
|
| 445 |
|
|
extern unsigned long start, end;
|
| 446 |
|
|
extern void panic_setup(char *, int *);
|
| 447 |
|
|
|
| 448 |
|
|
extern unsigned short root_flags;
|
| 449 |
|
|
extern unsigned short root_dev;
|
| 450 |
|
|
extern unsigned short ram_flags;
|
| 451 |
|
|
#define RAMDISK_IMAGE_START_MASK 0x07FF
|
| 452 |
|
|
#define RAMDISK_PROMPT_FLAG 0x8000
|
| 453 |
|
|
#define RAMDISK_LOAD_FLAG 0x4000
|
| 454 |
|
|
|
| 455 |
|
|
extern int root_mountflags;
|
| 456 |
|
|
|
| 457 |
|
|
char saved_command_line[256];
|
| 458 |
|
|
char reboot_command[256];
|
| 459 |
|
|
|
| 460 |
|
|
extern unsigned long phys_base, kern_base, kern_size;
|
| 461 |
|
|
|
| 462 |
|
|
static struct pt_regs fake_swapper_regs = { { 0, }, 0, 0, 0, 0 };
|
| 463 |
|
|
|
| 464 |
|
|
void register_prom_callbacks(void)
|
| 465 |
|
|
{
|
| 466 |
|
|
prom_setcallback(prom_callback);
|
| 467 |
|
|
prom_feval(": linux-va>tte-data 2 \" va>tte-data\" $callback drop ; "
|
| 468 |
|
|
"' linux-va>tte-data to va>tte-data");
|
| 469 |
|
|
prom_feval(": linux-.soft1 1 \" .soft1\" $callback 2drop ; "
|
| 470 |
|
|
"' linux-.soft1 to .soft1");
|
| 471 |
|
|
prom_feval(": linux-.soft2 1 \" .soft2\" $callback 2drop ; "
|
| 472 |
|
|
"' linux-.soft2 to .soft2");
|
| 473 |
|
|
}
|
| 474 |
|
|
|
| 475 |
|
|
extern void paging_init(void);
|
| 476 |
|
|
|
| 477 |
|
|
void __init setup_arch(char **cmdline_p)
|
| 478 |
|
|
{
|
| 479 |
|
|
extern int serial_console; /* in console.c, of course */
|
| 480 |
|
|
unsigned long highest_paddr;
|
| 481 |
|
|
int i;
|
| 482 |
|
|
|
| 483 |
|
|
/* Initialize PROM console and command line. */
|
| 484 |
|
|
*cmdline_p = prom_getbootargs();
|
| 485 |
|
|
strcpy(saved_command_line, *cmdline_p);
|
| 486 |
|
|
|
| 487 |
|
|
printk("ARCH: SUN4U\n");
|
| 488 |
|
|
|
| 489 |
|
|
#ifdef CONFIG_DUMMY_CONSOLE
|
| 490 |
|
|
conswitchp = &dummy_con;
|
| 491 |
|
|
#elif defined(CONFIG_PROM_CONSOLE)
|
| 492 |
|
|
conswitchp = &prom_con;
|
| 493 |
|
|
#endif
|
| 494 |
|
|
|
| 495 |
|
|
#ifdef CONFIG_SMP
|
| 496 |
|
|
i = (unsigned long)&irq_stat[1] - (unsigned long)&irq_stat[0];
|
| 497 |
|
|
if ((i == SMP_CACHE_BYTES) || (i == (2 * SMP_CACHE_BYTES))) {
|
| 498 |
|
|
extern unsigned int irqsz_patchme[1];
|
| 499 |
|
|
irqsz_patchme[0] |= ((i == SMP_CACHE_BYTES) ? SMP_CACHE_BYTES_SHIFT : \
|
| 500 |
|
|
SMP_CACHE_BYTES_SHIFT + 1);
|
| 501 |
|
|
flushi((long)&irqsz_patchme[0]);
|
| 502 |
|
|
} else {
|
| 503 |
|
|
prom_printf("Unexpected size of irq_stat[] elements\n");
|
| 504 |
|
|
prom_halt();
|
| 505 |
|
|
}
|
| 506 |
|
|
#endif
|
| 507 |
|
|
/* Work out if we are starfire early on */
|
| 508 |
|
|
check_if_starfire();
|
| 509 |
|
|
|
| 510 |
|
|
boot_flags_init(*cmdline_p);
|
| 511 |
|
|
|
| 512 |
|
|
idprom_init();
|
| 513 |
|
|
(void) prom_probe_memory();
|
| 514 |
|
|
|
| 515 |
|
|
/* In paging_init() we tip off this value to see if we need
|
| 516 |
|
|
* to change init_mm.pgd to point to the real alias mapping.
|
| 517 |
|
|
*/
|
| 518 |
|
|
phys_base = 0xffffffffffffffffUL;
|
| 519 |
|
|
highest_paddr = 0UL;
|
| 520 |
|
|
for (i = 0; sp_banks[i].num_bytes != 0; i++) {
|
| 521 |
|
|
unsigned long top;
|
| 522 |
|
|
|
| 523 |
|
|
if (sp_banks[i].base_addr < phys_base)
|
| 524 |
|
|
phys_base = sp_banks[i].base_addr;
|
| 525 |
|
|
top = sp_banks[i].base_addr +
|
| 526 |
|
|
sp_banks[i].num_bytes;
|
| 527 |
|
|
if (highest_paddr < top)
|
| 528 |
|
|
highest_paddr = top;
|
| 529 |
|
|
}
|
| 530 |
|
|
|
| 531 |
|
|
switch (tlb_type) {
|
| 532 |
|
|
default:
|
| 533 |
|
|
case spitfire:
|
| 534 |
|
|
kern_base = spitfire_get_itlb_data(sparc64_highest_locked_tlbent());
|
| 535 |
|
|
kern_base &= _PAGE_PADDR_SF;
|
| 536 |
|
|
break;
|
| 537 |
|
|
|
| 538 |
|
|
case cheetah:
|
| 539 |
|
|
case cheetah_plus:
|
| 540 |
|
|
kern_base = cheetah_get_litlb_data(sparc64_highest_locked_tlbent());
|
| 541 |
|
|
kern_base &= _PAGE_PADDR;
|
| 542 |
|
|
break;
|
| 543 |
|
|
};
|
| 544 |
|
|
|
| 545 |
|
|
kern_size = (unsigned long)&_end - (unsigned long)KERNBASE;
|
| 546 |
|
|
|
| 547 |
|
|
if (!root_flags)
|
| 548 |
|
|
root_mountflags &= ~MS_RDONLY;
|
| 549 |
|
|
ROOT_DEV = to_kdev_t(root_dev);
|
| 550 |
|
|
#ifdef CONFIG_BLK_DEV_INITRD
|
| 551 |
|
|
rd_image_start = ram_flags & RAMDISK_IMAGE_START_MASK;
|
| 552 |
|
|
rd_prompt = ((ram_flags & RAMDISK_PROMPT_FLAG) != 0);
|
| 553 |
|
|
rd_doload = ((ram_flags & RAMDISK_LOAD_FLAG) != 0);
|
| 554 |
|
|
#endif
|
| 555 |
|
|
|
| 556 |
|
|
init_task.thread.kregs = &fake_swapper_regs;
|
| 557 |
|
|
|
| 558 |
|
|
#ifdef CONFIG_IP_PNP
|
| 559 |
|
|
if (!ic_set_manually) {
|
| 560 |
|
|
int chosen = prom_finddevice ("/chosen");
|
| 561 |
|
|
u32 cl, sv, gw;
|
| 562 |
|
|
|
| 563 |
|
|
cl = prom_getintdefault (chosen, "client-ip", 0);
|
| 564 |
|
|
sv = prom_getintdefault (chosen, "server-ip", 0);
|
| 565 |
|
|
gw = prom_getintdefault (chosen, "gateway-ip", 0);
|
| 566 |
|
|
if (cl && sv) {
|
| 567 |
|
|
ic_myaddr = cl;
|
| 568 |
|
|
ic_servaddr = sv;
|
| 569 |
|
|
if (gw)
|
| 570 |
|
|
ic_gateway = gw;
|
| 571 |
|
|
#if defined(CONFIG_IP_PNP_BOOTP) || defined(CONFIG_IP_PNP_RARP)
|
| 572 |
|
|
ic_proto_enabled = 0;
|
| 573 |
|
|
#endif
|
| 574 |
|
|
}
|
| 575 |
|
|
}
|
| 576 |
|
|
#endif
|
| 577 |
|
|
|
| 578 |
|
|
#ifdef CONFIG_SUN_SERIAL
|
| 579 |
|
|
switch (console_fb) {
|
| 580 |
|
|
case 0: /* Let's get our io devices from prom */
|
| 581 |
|
|
{
|
| 582 |
|
|
int idev = prom_query_input_device();
|
| 583 |
|
|
int odev = prom_query_output_device();
|
| 584 |
|
|
if (idev == PROMDEV_IKBD && odev == PROMDEV_OSCREEN) {
|
| 585 |
|
|
serial_console = 0;
|
| 586 |
|
|
} else if (idev == PROMDEV_ITTYA && odev == PROMDEV_OTTYA) {
|
| 587 |
|
|
serial_console = 1;
|
| 588 |
|
|
} else if (idev == PROMDEV_ITTYB && odev == PROMDEV_OTTYB) {
|
| 589 |
|
|
serial_console = 2;
|
| 590 |
|
|
} else {
|
| 591 |
|
|
prom_printf("Inconsistent console: "
|
| 592 |
|
|
"input %d, output %d\n",
|
| 593 |
|
|
idev, odev);
|
| 594 |
|
|
prom_halt();
|
| 595 |
|
|
}
|
| 596 |
|
|
}
|
| 597 |
|
|
break;
|
| 598 |
|
|
case 1: /* Force one of the framebuffers as console */
|
| 599 |
|
|
serial_console = 0;
|
| 600 |
|
|
break;
|
| 601 |
|
|
case 2: /* Force ttya as console */
|
| 602 |
|
|
serial_console = 1;
|
| 603 |
|
|
break;
|
| 604 |
|
|
case 3: /* Force ttyb as console */
|
| 605 |
|
|
serial_console = 2;
|
| 606 |
|
|
break;
|
| 607 |
|
|
}
|
| 608 |
|
|
#else
|
| 609 |
|
|
serial_console = 0;
|
| 610 |
|
|
#endif
|
| 611 |
|
|
if (serial_console)
|
| 612 |
|
|
conswitchp = NULL;
|
| 613 |
|
|
|
| 614 |
|
|
paging_init();
|
| 615 |
|
|
}
|
| 616 |
|
|
|
| 617 |
|
|
asmlinkage int sys_ioperm(unsigned long from, unsigned long num, int on)
|
| 618 |
|
|
{
|
| 619 |
|
|
return -EIO;
|
| 620 |
|
|
}
|
| 621 |
|
|
|
| 622 |
|
|
/* BUFFER is PAGE_SIZE bytes long. */
|
| 623 |
|
|
|
| 624 |
|
|
extern char *sparc_cpu_type;
|
| 625 |
|
|
extern char *sparc_fpu_type;
|
| 626 |
|
|
|
| 627 |
|
|
extern void smp_info(struct seq_file *);
|
| 628 |
|
|
extern void smp_bogo(struct seq_file *);
|
| 629 |
|
|
extern void mmu_info(struct seq_file *);
|
| 630 |
|
|
|
| 631 |
|
|
#ifndef CONFIG_SMP
|
| 632 |
|
|
unsigned long up_clock_tick;
|
| 633 |
|
|
#endif
|
| 634 |
|
|
|
| 635 |
|
|
static int show_cpuinfo(struct seq_file *m, void *__unused)
|
| 636 |
|
|
{
|
| 637 |
|
|
seq_printf(m,
|
| 638 |
|
|
"cpu\t\t: %s\n"
|
| 639 |
|
|
"fpu\t\t: %s\n"
|
| 640 |
|
|
"promlib\t\t: Version 3 Revision %d\n"
|
| 641 |
|
|
"prom\t\t: %d.%d.%d\n"
|
| 642 |
|
|
"type\t\t: sun4u\n"
|
| 643 |
|
|
"ncpus probed\t: %d\n"
|
| 644 |
|
|
"ncpus active\t: %d\n"
|
| 645 |
|
|
#ifndef CONFIG_SMP
|
| 646 |
|
|
"Cpu0Bogo\t: %lu.%02lu\n"
|
| 647 |
|
|
"Cpu0ClkTck\t: %016lx\n"
|
| 648 |
|
|
#endif
|
| 649 |
|
|
,
|
| 650 |
|
|
sparc_cpu_type,
|
| 651 |
|
|
sparc_fpu_type,
|
| 652 |
|
|
prom_rev,
|
| 653 |
|
|
prom_prev >> 16,
|
| 654 |
|
|
(prom_prev >> 8) & 0xff,
|
| 655 |
|
|
prom_prev & 0xff,
|
| 656 |
|
|
linux_num_cpus,
|
| 657 |
|
|
smp_num_cpus
|
| 658 |
|
|
#ifndef CONFIG_SMP
|
| 659 |
|
|
, loops_per_jiffy/(500000/HZ),
|
| 660 |
|
|
(loops_per_jiffy/(5000/HZ)) % 100,
|
| 661 |
|
|
up_clock_tick
|
| 662 |
|
|
#endif
|
| 663 |
|
|
);
|
| 664 |
|
|
#ifdef CONFIG_SMP
|
| 665 |
|
|
smp_bogo(m);
|
| 666 |
|
|
#endif
|
| 667 |
|
|
mmu_info(m);
|
| 668 |
|
|
#ifdef CONFIG_SMP
|
| 669 |
|
|
smp_info(m);
|
| 670 |
|
|
#endif
|
| 671 |
|
|
return 0;
|
| 672 |
|
|
}
|
| 673 |
|
|
|
| 674 |
|
|
static void *c_start(struct seq_file *m, loff_t *pos)
|
| 675 |
|
|
{
|
| 676 |
|
|
/* The pointer we are returning is arbitrary,
|
| 677 |
|
|
* it just has to be non-NULL and not IS_ERR
|
| 678 |
|
|
* in the success case.
|
| 679 |
|
|
*/
|
| 680 |
|
|
return *pos == 0 ? &c_start : NULL;
|
| 681 |
|
|
}
|
| 682 |
|
|
|
| 683 |
|
|
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
|
| 684 |
|
|
{
|
| 685 |
|
|
++*pos;
|
| 686 |
|
|
return c_start(m, pos);
|
| 687 |
|
|
}
|
| 688 |
|
|
|
| 689 |
|
|
static void c_stop(struct seq_file *m, void *v)
|
| 690 |
|
|
{
|
| 691 |
|
|
}
|
| 692 |
|
|
|
| 693 |
|
|
struct seq_operations cpuinfo_op = {
|
| 694 |
|
|
start: c_start,
|
| 695 |
|
|
next: c_next,
|
| 696 |
|
|
stop: c_stop,
|
| 697 |
|
|
show: show_cpuinfo,
|
| 698 |
|
|
};
|
